1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    *
5    *
6    *
7    * The contents of this file are subject to the terms of the Liferay Enterprise
8    * Subscription License ("License"). You may not use this file except in
9    * compliance with the License. You can obtain a copy of the License by
10   * contacting Liferay, Inc. See the License for the specific language governing
11   * permissions and limitations under the License, including but not limited to
12   * distribution rights of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.upgrade.util;
24  
25  import com.liferay.portal.kernel.log.Log;
26  import com.liferay.portal.kernel.log.LogFactoryUtil;
27  import com.liferay.portal.kernel.util.FileUtil;
28  import com.liferay.portal.kernel.util.Validator;
29  import com.liferay.portal.tools.sql.DBUtil;
30  import com.liferay.portal.upgrade.UpgradeException;
31  
32  /**
33   * <a href="BaseUpgradeTableImpl.java.html"><b><i>View Source</i></b></a>
34   *
35   * @author Alexander Chow
36   * @author Brian Wing Shun Chan
37   */
38  public abstract class BaseUpgradeTableImpl extends Table {
39  
40      public BaseUpgradeTableImpl(String tableName) {
41          super(tableName);
42      }
43  
44      public BaseUpgradeTableImpl(String tableName, Object[][] columns) {
45          super(tableName, columns);
46      }
47  
48      public void setCreateSQL(String createSQL) throws Exception {
49          if (_calledUpdateTable) {
50              throw new UpgradeException(
51                  "setCreateSQL is called after updateTable");
52          }
53  
54          super.setCreateSQL(createSQL);
55      }
56  
57      public void updateTable() throws Exception {
58          _calledUpdateTable = true;
59  
60          String tempFileName = generateTempFile();
61  
62          try {
63              DBUtil dbUtil = DBUtil.getInstance();
64  
65              String createSQL = getCreateSQL();
66  
67              if (Validator.isNotNull(createSQL)) {
68                  dbUtil.runSQL("drop table " + getTableName());
69  
70                  dbUtil.runSQL(createSQL);
71              }
72  
73              if (Validator.isNotNull(tempFileName)) {
74                  String deleteSQL = getDeleteSQL();
75  
76                  dbUtil.runSQL(deleteSQL);
77  
78                  populateTable(tempFileName);
79              }
80          }
81          finally {
82              if (Validator.isNotNull(tempFileName)) {
83                  FileUtil.delete(tempFileName);
84              }
85          }
86      }
87  
88      static Log _log = LogFactoryUtil.getLog(BaseUpgradeTableImpl.class);
89  
90      private boolean _calledUpdateTable;
91  
92  }